For years, India's first bullet train existed mostly as an argument.

Today it exists as 357 km of finished viaduct across Gujarat, a tunnel-boring machine grinding beneath Mumbai, and a factory in Surat producing the Shinkansen-grade trackbed India has never laid.

The Mumbai-Ahmedabad High Speed Rail (MAHSR) corridor runs 508 km across Gujarat (348 km), Dadra & Nagar Haveli (4 km) and Maharashtra (156 km), linking 12 stations and three depots.

Sanctioned in 2015 and built with Japanese technical assistance and soft-loan financing, it is designed for 320 kmph, enough to cut a six-hour train journey to roughly two.

The knots that once defined its headlines are untied: all 1,389.5 hectares of land acquired, all clearances secured, all 1,651 utility lines shifted.